Multipurpose powered subwoofer

High output, self powered (class D switch mode power supply with PFC), direct radiation subwoofer cabinet.


The GXR-18S model is a self-powered subwoofer enclosure specially designed to reinforce the low frequencies of the full range models of the GXR series. You do not need to carry an external amplification rack and it is an excellent option for subwoofer reinforcement in general.

The enclosure has 1400 W class D amplifier switching power supply, with DSP processor. This system can be controlled online in real time and stands out for its high performance, with an excellent power-size ratio.

For portable applications, a wheel kit is available to facilitate transportation. It can also be covered with a practical nylon sheath that protects the box during transport and storage.


Perfectly suited for:

→  Theatres & auditoriums
→  Houses of worship
→  Small / middle sized clubs & discos
→  Smaller live stages / events
→  Front fill / side fill reinforcement
→  Portable sound reinforcement

Technical Data


LF: 1 x 18″. 3″ voice coil
Frequency Range 38 Hz – 140 Hz (-10dB)
Frequency Response
44 Hz – 125 Hz (± 3dB)
Max SPL 132 dB
Coverage Angle
Power 1400W Class D with switching power supply & PFC
LF Amplifier
1 x 1400 W
Processing 48 KHz / 56 bit double precision DSP 
User control interface with LCD
Control Connections USB (DSP programming)
AC Power
85 – 270V. 50/60 Hz with PFC
AC Connections 16A Neutrik powerCon TRUE1 TOP with looping output
Polyurea coating, black colour
Material 18 mm premium birch plywood
505 x 505 x 700 mm (H x W x D)
Weight 41 kg (90 lbs)

More features

Hardware for GXR-18S

The GXR-18S cabinet is constructed from 11-ply premium birch plywood (15mm thickness) and finished with polyurea coating.

Internal design

The internal structure of the GXR-18S is heavily braced for greater longevity and all parts are assembled on metal inserts with metric screws. The amplification modules & DSP are housed in a separate chamber to the drivers avoiding excessive heat & vibration, thus delivering greater efficiency and reliability.

Rear panel CXA-18S Lynx
Rear panel

The powder coated steel rear panel contains all connections and houses the GXR-18S amplification modules and DSP, is easily accessible and housed separately from the drivers for increased reliability and efficiency.

Grill GXR-12

The GXR-18S has a heavy duty, powder coated front grille with a special acoustic rear fabric to protect the transducers against dust and dirt.

Handle HR-18-6

Handles are integrated in to the side plates of the GXR-18S to facilitate transport, positioning and loading of the cabinets. 

Accessories for GXR-18S
GR-18Wkit GR-18WKIT
Four wheel kit
Nylon protection for GXR-18S

Other products from this series

2 x 10” transducers with driver 1.4″ + waveguide , 135 dB SPL 

Passive version available

2 x 15” transducers, 134 dB SPL 

Passive version available

2 x 18” transducers, 134 dB SPL

Passive version available


GRX-215 series

2 x 15” transducers with 1 x 1.4” driver, 131 dB SPL


GXR-15 series

1 x 15” transducer with a 1″ driver, 128 dB SPL


GXR-12 series

1 x 12” transducer with 1 x 1” driver, 127 dB SPL

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